814538541 has 4 divisors (see below), whose sum is σ = 1086051392. Its totient is φ = 543025692.

The previous prime is 814538539. The next prime is 814538567. The reversal of 814538541 is 145835418.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 814538541 - 2¹ = 814538539 is a prime.

It is a super-3 number, since 3×814538541³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 814538541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814538521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135756421 + ... + 135756426.

It is an arithmetic number, because the mean of its divisors is an integer number (271512848).

Almost surely, 2^814538541 is an apocalyptic number.

It is an amenable number.

814538541 is a deficient number, since it is larger than the sum of its proper divisors (271512851).

814538541 is a wasteful number, since it uses less digits than its factorization.

814538541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271512850.

The product of its digits is 76800, while the sum is 39.

The square root of 814538541 is about 28540.1216010023. The cubic root of 814538541 is about 933.9075350906.

The spelling of 814538541 in words is "eight hundred fourteen million, five hundred thirty-eight thousand, five hundred forty-one".